CVE-2023-52859
Linux Kernel vulnerability analysis and mitigation

Overview

A use-after-free vulnerability was identified in the Linux kernel's HiSilicon performance monitoring unit (PMU) implementation, specifically when the PMU registration fails. This vulnerability is tracked as CVE-2023-52859 and was disclosed in late 2023 (Red Hat Portal).

Technical details

The vulnerability exists in the Linux kernel's performance monitoring subsystem, specifically affecting the HiSilicon PMU implementation. The issue manifests as a use-after-free condition when the PMU registration process fails. The vulnerability has been assigned a CVSS score of 6.0, indicating moderate severity (Rapid7).

Impact

The use-after-free vulnerability could potentially lead to memory corruption in the kernel space, which might result in system crashes or potential privilege escalation scenarios (Red Hat Portal).

Mitigation and workarounds

The vulnerability has been addressed through patches in the Linux kernel. Red Hat has released security updates to address this issue in their affected products, as documented in their security advisory RHSA-2024:9315 (Red Hat Advisory).

Additional resources


SourceThis report was generated using AI

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